<template>
  <el-dialog
    width="500px"
    title="员工导入"
    :visible="showExcelDialog"
    @close="$emit('update:showExcelDialog', false)"
  >
    <el-row type="flex" justify="center">
      <div class="upload-excel">
        <input
          ref="excel-upload-input"
          class="excel-upload-input"
          type="file"
          accept=".xlsx, .xls"
          @change="updateFiles"
        >
        <div class="drop">
          <i class="el-icon-upload" />
          <el-button type="text" @click="exportModule">下载导入模板</el-button>
          <span>将文件拖到此处或
            <el-button type="text" @click="showInput">点击上传</el-button>
          </span>
        </div>
      </div>
    </el-row>
    <el-row type="flex" justify="end">
      <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
      <el-button size="mini" type="primary" @click="$emit('update:showExcelDialog', false)">取消</el-button>
    </el-row>
  </el-dialog>
</template>
<script>
import { EmployeeModule,importEmloyee } from '@/api/employee'
import filesaver from 'file-saver'
export default {
  props: {
    showExcelDialog: {
      type: Boolean,
      default: false
    }
  },
  methods: {
async exportModule(){
     const module = await EmployeeModule()
     filesaver.saveAs(module,'员工信息模板.xlsx')
},
showInput(){
    // 点击上传模拟点击了文件选择框
    this.$refs['excel-upload-input'].click()
},
// 想要拿到在文件选中框选中的文件,需要通过监听表单的change事件,拿到当前选中的文件
 async updateFiles(event){
// console.log(event);
// 拿到的是一个伪数组
// console.log(this.$refs['excel-upload-input'].files);
const files = this.$refs['excel-upload-input'].files
// 判断用户选中文件没
if(files.length > 0) {
    const fd = new FormData()
    fd.append('file',files[0])
    try {
        // 调接口
      await  importEmloyee(fd)
      // 关闭弹窗
      this.$emit('update:showExcelDialog',false)
      // 如果上传成功 告诉父组件 重新调获取员工列表的接口
      this.$emit('fuckchange')
      this.$message.success('导入成功')
    } catch (error) {
        this.$message.error('检查检查')
    } finally {
        // 无论上传成功或失败 都清空内容
        this.$refs['excel-upload-input'].value = ''
    }
}
}
  }
}
</script>

<style scoped lang="scss">
    .upload-excel {
      display: flex;
      justify-content: center;
      margin: 20px;
      width: 360px;
      height: 180px;
      align-items: center;
      color: #697086;
      .excel-upload-input {
        display: none;
        z-index: -9999;
      }
      .btn-upload,
      .drop {
        border: 1px dashed #dcdfe6;
        width: 100%;
        height: 100%;
        text-align: center;
        line-height: 160px;
        border-radius: 8px;
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .drop {
        line-height: 40px;
        color: #bbb;
        i {
          font-size: 60px;
          display: block;
          color: #c0c4cc;
        }
      }
    }
</style>